Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Divasibranchia Minichev & Starobogatov, 1975
       Order Stylommatophora Schmidt, 1855 see Infraorder Stylommatophora Schmidt, 1855
         Suborder Orthurethra Pilsbry, 1900
           Superfamily Pupilloidea Turton, 1831
             Family Vertiginidae Fitzinger, 1833
               Subfamily Nesopupinae Steenberg, 1925
                 Genus Sterkia Pilsbry, 1898
                   1 Subgenus Metasterkia Pilsbry, 1920